Oiler for air-compressors



2 SHEETSSHEET l- N Qwrs Patented May 11, 1920.

E. C. BARCHARD. QILER ron AIR C OMPRESSORS. APPLICATION FILED JUNE 23, 1919.

E. c. BARCHARD.

OILER FOR AIR COMPRESSORS.

APPLICATION FILED JUNE 23, 1919.

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nnrrn srn'rns PATENT onnron. I

EMMA o. BARGHARD, or CHICAGO, ILLINOIS.

OILER non AIR-COMPRESSORS.

Application filed June 23, 1919.

To all whom it may concern.-

Be it known that I, EMMA C. BAROHARD, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Oilers for Air-Compressors, of which the following is a specification.

My invention relates to a new and useful improvement in oiler for air compressors, and has for its object to provide an exceedingly simple and elfective device by which the oily waters of condensation from the exhaust of the steam end of the compressor may be trapped, and the oil rising to the top thereof automatically delivered to the air cylinder of the compressor for lubricating the same.

A further object of my invention is to so arrange the mechanism as to deliver a varying quantity of this oil to the air cylinder corresponding to the variance in the speed or number of strokes made by the piston of said air cylinder.

A still further object of my invention is to produce the above named results through 1 the medium of a small percentage of the compressed air delivered from the air cylinder.

W ith these ends in view, this invention consists in the details of construction and describe its construction in detail, referring] by numerals to the accompanying drawings forming a part of this application in which Figure 1, is a side elevation of the device, the front plate of the casing being removed, and the actuated cylinder sectioned so as to show the relative position of the various parts.

Fig. 2, is an elevation of'the oil delivering mechanism looking in the direction of the arrow in Fig. 1, the oil delivering pipes be ing in section.

Fig. 3, is a plan view of Fig. 1, the top of the casing being removed, and a portion of the oil delivering mechanism being in section, and

Fig. 4, is a central section of one of the Specification of Letters Patent.

Patented May 11, 1920.

Serial No. 306,135.

of which serves as a reservoir for trapping a certain percentage of the waters of condensation from the exhaust from the steam end of the compressor, 2 representing the exhaust pipe leading from said compressor, which enters the casing near the top thereof, while 3 represents theexhaust pipe leading from the casing, the latter being at a lower level than the point where the pipe 2 enters.

WVithin the reservoir is located an inner casing or frame 1 which may be readily inserted or withdrawn by the removal of the bottom plate 5 of the reservoir, and Within this casing are located two 4-way couplings 6 which have coupled thereto the oil delivery pipes which in turn are intended to be ends being closed by the plugs 11 one of which is shown in Fig. 1.

12 represents a shaft which is journaled in the sockets 13 and passes through the couplings 6 having the two pockets 14 therein, each of said pockets registering with the pipes 7 and 9 leading into the coupling 6.

A ratchet wheel. 15 is secured upon the shaft 12, between the two couplings 6, so as to revolve said shaft, and this ratchet wheel is in turn revolved intermittently by the pawl 16 engaging the teeth thereof, said pawl being pivoted at 17 to the piston rod 18, carrying the piston 19 fitted to. slide in the cylinder 20.

A cylinder 20 is mounted in the frame 4, and is connected by the pipe line 21 to the air cylinder of the compressor, and said pipe line has a check valve 22 included therein, so as to permit the compressed air from the cylinder to flow in one direction only.

28 represents a stu'filng box for preventing leaking at the point where the pipe line 21 passes into the casing 1.

As the piston 19 is actuated in. one direction only by the compressed air from the compressor, a spring 24 is interposed between said piston and the lower head of the cylinder 20, as to return the piston to its elevated position when the flow of compressed air has ceased, and if found desirable any suitable means of relief for this air pressure may be provided.

In the pipes 9 are formed the openingsifi, through which the oil accumulating upon. the waters of condensation in the reservoir may flow to the interior of these pipes, thus maintaining the supply of oil in these pipes from whichit is transferred to the pipes 7 by entering the pockets 14, and as the shaft 12 revolves, carrying the openings of the pockets in registration with the interior of these pipes 7, the oil will flow from said pockets into the last named pipes, and upon the reverse strokes of the pistons of the air cylinders, this oil will be drawn into said cylinders by the suction thus created, but no backflow of air. from the cylinders to the pipes 9 can take place, since the pockets are closed upon one side, and therefore never form open passageways as will be readily understood.-

In order that the oil transferred to the pipe 7 may be freely drawn therefrom by the suction created in the air cylinders I have run a small pipe 26 from the atmosphere to the interior of the pipes 7 said pipes extending in close proximity to the shaft 12, thus venting these pipes 7.

A beveled plate 27 may be located within the reservoir just below the exhaust pipe 3 in order that the suction created by said exhaust may not lift the oily water of condensation from the reservoir.

From the foregoing (lOSCI'HQtlOU it will. he seen that the oily water of condensation will accumulate within the reservoir up to the level of the exhaust pipe 3, and the removing of the shaft 12 will convey the oil floating upon said water from the pipes 9 to the pipe 7, and from this to, the air cylinders, the check valves 8 preventing the inflow of compressed air to these pipes, and as the shaft is revolved by the ratchet wheel intermittently actuated by the movements of the piston 19, and as said piston is actuated in time with the strokes of the air cylinder pistons, more or less oil will be delivered to these air cyl inders' relative to the number of strokes made by their pistons. Thus when the air compressors are working at high. speed, a greater quantity of oil will be delivered, thus giving an intermittent lubrication corresponding with work done by the air compressor.

As certain types of air compressors vary greatly in the speed and time of their operation, heretofore the lubrication thereof has not been satisfactory, whereas by the use of my improvement the .delivery of oil to these cylinders is made to correspond with the Work done by them, and therefore overcomes the many difliculties which have here oil from the waters of condensation of the exhaust, and uses the same in the most effective manner. On any locomotive, this 1S of great importance.

Of course 1 do not wish to be limited to,

the exact details of construction as herein shown, as these may be varied within the limits of the appended claims without departing from the spirit of my invention Having thus fully described my invention, what I claim as new and useful is 1. In a device of the character described, a reservoir, an exhaust pipe leading to said reservoir near the top thereof, an exhaust )ipe leading from said reservoir at a point below the first named exhaust pipe, oil delivery pipes leading from the reservoir to the air cylinders of an air compressor, a shaft revolving in front of the ends of said pipes, pockets formed in said shaft adapted to pass into alinement with said pipes, means for delivering oil from the waters of condensation in said reservoir to said pockets, and means dependent upon the stroke of the pistons of the air compressors for intermittently revolving said shaft.

2. In a device of the character described, a reservoir, an exhaust pipe leading to said reservoir near the top thereof, an exhaust pipe leading from said reservoir at a point below the first named exhaust pipe, oil delivery pipes leading from the reservoir to the air cylinders of an air compressor, a shaft revolving in front of the ends of said pipes, said shafts having pockets formed therein adapted to pass in alinement with said pipes, means for delivering ,oil from the Waters of condensation in said reservoir to said pockets, a ratchet wheel carried upon said shaft, a cylinder, a piston located in said cylinder, said piston being spring actuated in one direction, and meansfor revolving the ratchet wheel from the movements of said piston.

8. In a device of the character described, a reservoir, an exhaust pipe leading to said reservoir near the top thereof, an exhaust pipe leadin from said reservoir at a point below the irst named exhaust pipe, oil delivery pipes leading from the reservoir to the air cylinders of an air compressor, a shaft revolving in front of the ends of said pipes, said shafts having pockets formed therein adapted to pass in alinement with said pipes, means for delivering oil from the waters of condensation in said reservoir to said pockets, a ratchet wheel carried upon said shaft, a cylinder, a piston located in said cylinder, said piston beingsp'ring actuated in one direction, means for revolving the ratchet wheel from the movements of said piston, and a pipe line connecting the interior of said cylinder with the air cylinder of the air compressor.

4C. In a device of the character described, a reservoir having exhaust pipes leading thereto and therefrom, a frame located within the reservoir, couplings located within said frame, a shaft having pockets therein for the revolving of said couplings, oil delivery pipes leading from the couplings, a ratchet wheel secured upon said shaft so as to revolve the latter, means for delivering oil to the pockets of said shaft, a pawl adapted to intermittently revolve the ratchet wheel, a piston rod to which said pawl is pivoted, a piston carried by the piston rod, a cylinder in which said piston is adapted to reciprocate, a spring for actuating the piston in one direction, and means for actuating the piston against the action of the spring.

5. In a device of the character described, a reservoir having exhaust-pipes leading thereto and therefrom, a frame located within the reservoir, couplings located within said frame, a shaft having pockets therein for the revolving of said couplings, oil delivery pipes leading from the couplings, a ratchet wheel secured upon said shaft so as to revolve the latter, means for delivering oil to the pockets of said shaft, a pawl adapted to intermittently revolve the ratchet wheel, a piston rod to which said pawl is pivoted a piston carried by the piston rod, a cylinder in which said piston is adapted to reciprocate, a spring for actuating the piston in one direction, means for actuating the piston against the action of the spring, and means for venting the oil delivery pipes.

In testimony whereof, I have hereunto affixed my signature.

EMMA C. BARCHARD. 

